cpufreq: OMAP: move clk name decision to init
Clk name does'nt need to dynamically detected during clk init.
move them off to driver initialization, if we dont have a clk name,
there is no point in registering the driver anyways. The actual clk
get and put is left at cpu_init and exit functions.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 0a5d95c..3651825 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -49,6 +49,7 @@
static struct cpufreq_frequency_table *freq_table;
static struct clk *mpu_clk;
+static char *mpu_clk_name;
static int omap_verify_speed(struct cpufreq_policy *policy)
{
@@ -153,13 +154,7 @@
int result = 0;
struct device *mpu_dev;
- if (cpu_is_omap24xx())
- mpu_clk = clk_get(NULL, "virt_prcm_set");
- else if (cpu_is_omap34xx())
- mpu_clk = clk_get(NULL, "dpll1_ck");
- else if (cpu_is_omap44xx())
- mpu_clk = clk_get(NULL, "dpll_mpu_ck");
-
+ mpu_clk = clk_get(NULL, mpu_clk_name);
if (IS_ERR(mpu_clk))
return PTR_ERR(mpu_clk);
@@ -233,6 +228,17 @@
static int __init omap_cpufreq_init(void)
{
+ if (cpu_is_omap24xx())
+ mpu_clk_name = "virt_prcm_set";
+ else if (cpu_is_omap34xx())
+ mpu_clk_name = "dpll1_ck";
+ else if (cpu_is_omap44xx())
+ mpu_clk_name = "dpll_mpu_ck";
+
+ if (!mpu_clk_name) {
+ pr_err("%s: unsupported Silicon?\n", __func__);
+ return -EINVAL;
+ }
return cpufreq_register_driver(&omap_driver);
}